IntegraSys, a Fiserv business unit, has named Dan Hall regional sales manager. IBT, a specialty retail branch/performance consulting firm, has named Mylle Mangum CEO. Emick Howard & Seibert, Inc., a full-service facility-planning firm, has named Curtis Bales, AIA, NCARB project manager for corporate and financial projects. United Guaranty Residential Insurance Company, a mortgage insurer, has named Matthew Beittel Cincinnati area representative. La Macchia Group, a design/build firm, has named Joseph J. Minorik director of architectural services. PSCU Financial Services, a financial services provider, has named Harry Sargent director of the eastern service center.